10/14/2020
This is a look inside a Vizio 55” LED Tv.
This tv had sound and no picture.
See Inside the tv, ( behind the screen). This will help you understand why your tv had sound and no picture. These lights work similar to Christmas lights, ( if 1 or 5 goes out, they all go out).
LED light array replacement should only be done by a qualified professional. This is NOT something you should attempt at home.
YOU WILL DESTROY THE TV.
Leave it to the experienced professionals. This is only to help you understand this symptom.
LED lights are not one size fits all, they are very specific to your model/ serial number.